let formatError = (ctx, err, costTime) => {
    let method = ctx.method
    let url = ctx.url
    let body = ctx.request.body
    let userAgent = ctx.header.userAgent
    return { method, url, body, costTime, err }
}
let formatRes = (ctx, costTime) => {
    let method = ctx.method
    let url = ctx.url
    let body = ctx.request.body
    let response = ctx.response
    return { method, url, body, costTime, response }
}

module.exports = { formatError, formatRes }